4
allow stronger audio signals.
Discrimination
This knob is located at the bottom right side on the front of
the Control box. It sets the level of the discrimination. Rotating the
Discrimination knob to the Accept position on the scale will result in
accepting any kind of metal targets. Rotating to the Reject position on the
scale will result in discriminating almost all metal targets with few
exceptions relative to very large size or extreme electrical conductivity.
Generally, the discrimination level should be set as low as is possible; to
avoid masking the smallest and deepest desired targets.
Coronado Groundfix can also be used as a
BEACH DETECTOR
. This
function is very easy to set by only adjusting the Discrimination level slightly
higher to the Reject side untill the salt water signals turn into clicking
sounds.
Ground balance
The ground balance of the Coronado Groundfix is fully
automatic control fuction divided in three levels by a toggle switch. This
switch is used to set the balance of the Coronado Groundfix to suit the soil
conditions on any given site. For best search results always turn the toggle
switch on Low position if the ground conditions allow. Otherwise use the
next higher fixed level to avoid false signals form the ground minerals.
Operation
No metal detector, however powerful, will operate at its best unless it is set
up properly for the conditions in which it is to be used. To obtain the best
results and maximum depth and sensitivity to desired targets, the
Coronado Groundfix must be properly tuned to the site.
Having assembled the Coronado Groundfix, inserted batteries and
connected the headphones (or just use the speaker), the detector is ready
for use.
Turn the On-Off switch on Volume Control to turn the power of the
Coronado Groundfix on. A tone will be heard, which will fade in a short
period of time. Adjust the Volume knob to set a comfortable level.
Ground balance
If the Ground Balance is set on incorrect level the detector
will pick up false signal. To check the ground balance level move the
search coil from 2” to 10” distance above the ground level. If a clear signal
appear while lifting the coil up then set the fixed ground balance from Low
